An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
1 Department of Surgery, Hospital Alemán of Buenos Aires, University of Buenos Aires, Argentina; Department of Surgery, University of North Carolina, Chapel Hill, North Carolina, EE. UU.. Electronic address: fschlottmann@hotmail.com.
2 Department of Medicine and Surgery, University of North Carolina, Chapel Hill, North Carolina, EE. UU.
1 Department of Surgery, Hospital Alemán of Buenos Aires, University of Buenos Aires, Argentina; Department of Surgery, University of North Carolina, Chapel Hill, North Carolina, EE. UU.. Electronic address: fschlottmann@hotmail.com.
2 Department of Medicine and Surgery, University of North Carolina, Chapel Hill, North Carolina, EE. UU.